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#1 |
Registered User
Join Date: Nov 2013
Location: Antioch, Ca.
Posts: 456
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Blast Cabinets
Hello All,
While going through 7dee2 (Brett)'s 67 Camaro Build I was looking at his blast cabinet build, I thought I'd like to get some input from those that have one and have maybe modified them. I have the same unit from Harbor Freight and have added some updates. I added the bottom abrasive pickup kit, the foot pedal kit, a new/better nozzle, and a shop vac. My compressor is a Craftsman 6 1/2 Hp 60 Gal vertical tank, its 240 V, max pressure 125 psi, 15 scfm @ 40 psi and 11 1/2 scfm @ 90 psi. It does do "ok" blasting sometimes but not always. I have glass beads in it now and I had some black aluminum oxide in it before I updated it. I really want it to remove rust better and faster than it does now. One of the problems i have with it is the glass beads do not settle very well back in to bottom, they stay on the upper edges and stay on the sides of the "funnel" so I have to shake it or beat on it to get it to settle a bit. the other day I saw an electric motor that vibrates it to help. Does anyone have any ideas to help this cabinet to work better? Also what's the best blast media you use? Thanks for your help!!!
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Take Care Troy |
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#2 |
Post Whore
![]() ![]() Join Date: May 2015
Location: Alabama
Posts: 14,646
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Re: Blast Cabinets
The glass beads are a very fine abrasive... if you want to remove rust better, then get sand..obviously the coarser grit the better..I run 80 and 120 in mine
At work, we use glass beads, we cut some teflon sheets to fit the sides to help it slide down better..moisture also creates problems..so we hang decadent bags under the screen
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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#3 |
Senior Member
![]() Join Date: Dec 2009
Location: TN.
Posts: 8,119
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Re: Blast Cabinets
For rust removal, I use Aluminum Oxide.
It's the Longest-lasting media for fast, effective rust removal. Here is a list of other abrasives and their application. Glass Bead/Works best on softer metals like aluminum, brass and die-cast. Walnut Shells/Remove paint, carbon deposits from ferrous metal, clean internal parts. Ground Glass Media Free 40/70 Mesh Non-hazardous silica substitute to use for light rust removal. Silicon Carbide/Sharp edges for heavy rust removal, welding/brazing prep, glass etching. Rust Remover Bicarb Soda w/ 10% 70 Grit Alum Oxide/Most aggressive soda for rust removal; 90% soda, 10% alum. oxide. Now for the media issue not sliding back down, I found a kick drum pedal at a scrap yard one time it works great. You can leave you hands in the gloves and you don't have to knee the cabinet ![]() I also have a small vibration motor on there.
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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#4 |
Post Whore
![]() ![]() Join Date: May 2015
Location: Alabama
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Re: Blast Cabinets
Love the kick pedal idea..!!..
Where'd you get the vibrator motor...that looks nice..I found a few, but they were on the big size,,,,or 12v
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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#5 |
Senior Member
![]() Join Date: Dec 2009
Location: TN.
Posts: 8,119
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Re: Blast Cabinets
Mine is a little different.
This is a link for example. Link: https://www.ebay.com/itm/16431955818...2Cchnl%3Dmkcid
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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#6 |
Post Whore
![]() ![]() Join Date: May 2015
Location: Alabama
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Re: Blast Cabinets
Thanks..!
I found the one in your pic above..looks like under $45 ..not bad
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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#7 |
Registered User
Join Date: Nov 2013
Location: Antioch, Ca.
Posts: 456
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Re: Blast Cabinets
Hello again All, I changed out the glass beads with some black iron oxide and man what a difference!!!! I was able to blast my control arms much faster!!! I think the only problem I have now it the piece of crap compressor! Thanks for your help!!!!
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#8 |
Senior Member
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Location: TN.
Posts: 8,119
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Re: Blast Cabinets
Here is another upgrade I have.
This is a simple short U tube video below. There are tons of videos on this same upgrade. It can also be done with Pipe & ball valve from the Box stores.
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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#9 |
Registered User
Join Date: Nov 2013
Location: Antioch, Ca.
Posts: 456
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Re: Blast Cabinets
Well today I tore down my Air Compressor and rebuilt it. The cylinders and the seal rings were SHOT!!! I just started it up and it went from 0 psi to 125 psi in less than 5 mins!!! Now I think my blasters gunna kick butt!!!! Yipee!!!!
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#10 | |
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Location: TN.
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Re: Blast Cabinets
Quote:
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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#11 |
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Location: Yorktown, VA
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Re: Blast Cabinets
Steel grit also works very well, but if you don't do some "protecting" of the inner cabinet, it will eat through the cabinet also. Rust removal is no issue for steel grit - comes in various grades also, and honestly in my experience lasts far longer than anything else.
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#12 | |
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Location: TN.
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Re: Blast Cabinets
Quote:
![]() I use a stainless steel Sheild behind what I am blasting. if I use Steel shot. With your Idea I may cut some sheets at work to protect my cabinet. ![]()
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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#13 |
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Location: Yorktown, VA
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Re: Blast Cabinets
So there is a difference between grit, and shot - you are probably aware. Shot is like small bb's, grit is just that, sharp and angular. They both leave very differing surface prep's once blasted.
We use thick mud flap style rubber material to line the inside of our cabinet at work, usually 3/8". |
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#14 | |
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Location: TN.
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Re: Blast Cabinets
Quote:
![]() Eastwood has some good info on different media. Link: https://www.eastwood.com/abrasive-blasting.html?cat=104 The old guy I send some of my Bigger stuff to, He has Ground up Light switch covers for media. I just have the simple stuff. Walnut shell, Steel shot and alum. ox ![]() ![]()
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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#15 |
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Join Date: Nov 2010
Location: calgary alberta
Posts: 8,037
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Re: Blast Cabinets
when I went to pick up some more silica sand for my cabinet blaster, the yard guy asked me what I was using it for. when I told him he asked if I have a cabinet full of powder. I said, well, yeah it doesn't seem to last long. he recommended garnet for cabinet blasters because it doesn't shatter upon the first impact and make powder. I switched over for a bag to test it out. it works better for sure and partially, i think, because it takes more impacts before powdering up
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#16 |
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Join Date: Jul 2007
Location: Toppenish, WA
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Re: Blast Cabinets
Silica sand isn't good for your lungs either. lot of people use it because it is cheap and easy go get but the dust off it is what causes silicosis.
Media for sand blast cabinets has improved greatly in the past 20 or so years as so many people have blast cabinets at home. As far as compressors go, it takes a pretty good and big compressor to keep up with any sand blast cabinet with the amount of air they use.
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Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. |
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#17 |
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Location: toledo oh
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Re: Blast Cabinets
Some good information. thanks
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#18 |
Registered User
Join Date: Jan 2016
Location: NJ
Posts: 406
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Re: Blast Cabinets
+1 on the Garnet and it doesn't absorb moisture
Just regulate your air pressure so it doesn't hit too hard and shatter the media. |
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#19 | |
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Re: Blast Cabinets
Quote:
Thanks in advance.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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